Question

a 2.75 kg sample of a substance occupies a volume of 250.0 cm³. find its density in g/cm³.

Explanation:

Step1: Convert mass to grams

We know 1 kg = 1000 g, so 2.75 kg = 2.75×1000 g = 2750 g.

Step2: Use density formula

The density formula is $
ho=\frac{m}{V}$, where $m$ is mass and $V$ is volume. Given $m = 2750$ g and $V=250.0$ cm³. Then $
ho=\frac{2750}{250.0}$ g/cm³ = 11 g/cm³.

Answer:

11 g/cm³